Tank heater



H. A. BARRETT.

TANK HEATER.

APPLICATION FILED FEB. 24, 1921.

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H-. A. BARRETT.

TANK HEATER.

Patented Mar. 7, 1922.

2 SHEETS SH TET'Z.y

UNITED STATES PATENT OFFICE.

HIRAM A. BARR/ETT, 0F KNOXVILLE, ILLINOIS.

TANK HEATER.

Application filed February 24, 1921.

To all whom it may conce/ra.'

Be 1t known that l, HIRAM A. BARRETT, a

citizen of the United States, residing at be prevented from freezing and will be maine tained at a temperature suitable for drinking by the stock. The invention seeks to provide a novel and efficient heater by the use of which a circulation of the water in the tank will be effected and the .entire body of the same, therefore, heated. The invention also Vseeks to provide a heater of such construction that air will be admitted to the heater in sufficient volume to support combustion and permitted to escape so that accumulation of foul air in the heater will be avoided. The invention further seeks to provide a heater for the stated purposes which will be inexpensive and may be readily'employed within any tank.

The invention is illustrated in the accompanying drawings and will be hereinafter fully set forth, and in the said drawings- Figure l is a longitudinal vertical section of a heater embodying my invention and arranged within a tank;

Fig. 2 is a detail transverse section of the Water back;

Fig. 3 is a view partly in elevation and partly in transverse section.

In the drawings, a portion of the tank is shown at l and the heater is shown as restingdirectly upon the bottom of the tank. The heater comprises a shell or casing 2 having a main portion projecting above the water line in the tank and preferably above the top of the tank. The casing is further provided with an offset or extension 3, the top of which is below the water level and withinwhich is supported a water back Il and burners 5. The burners 5 may be of any well-known type of oil burner and will preferably be arranged in pairs, as shown most clearly in Fig'. 3, leach burner being equipped with a chimney or flue 6 so that the heat from the burner will be directed against the bottom of the water back 4 which is supported within the offset 3 above and over the burners. The water back is a closedl com- Specification of Letters Patent.

Patented Mar. '7, `1922.

Serial No. 447,420.

partment resting upon brackets 7 secured upon the inner surface of the shell or casing of the heater and the bottom of the water back 1s corrugated, as shown at 8, whereby an extended heating surface will be presented to the action of the hot currents rising from the burners 5 and the water in con* tact with the said corrugated bottom` will be quickly raised in temperature. `It will be readily noted that the corrugated formation of the water back bottom provides lower channels or grooves in which the heat from the burners will be confined and also provides upper channels or grooves which receive portions of the water in the water back so that within a comparatively small area of the heater, a large heating surface Will act upon the water so that the water will be` quickly heated and circulation of the same will ensue. From one end of the water back, an inlet nozzle or pipe 9 extends through the adjacent wall of the shell and this nozzle has its outer end downturned, as shown clearly in Fig. 3. At the opposite end of the water back, an outlet 'i0 leads through the adjacent wall of the shell or casing `2 and this outlet nozzle is extended upwardly and will preferably terminate at or slightly above the normal water level. of the tank. It will be readily understood that as the bottom of the waterback is exposed to the direct action of the heat from the burners 5, the water resting upon the bottom of the water back will be soon raised in temperature and willy pass out through the outlet nozzle l() and be discharged onto and commingle with the main body of wa'terin the tank. As heated water leaves the water back, cooler water will iow into the same and it will be readily noted that as the inlet nozzle is turned downwardly outside the casing 2, the water entering the said nozzle will come from a level near the bottom of the tank and, therefore, al thorough circulation of the water in the tank will be set up.

Fuel is supplied to the burners 5 through a pipe 1l supported upon the `floor of the heater or in any other preferred manner and communicates with the burners through branches l2. The pipe ll is connected directly with a supply tank or reservoir 13 which may be supported in any desired manner within the shell 2 at av point remote from the burners, and between the reservoir and the burners, I provide a partition 14 which combustion at the burners divides the interior ofthe main portion of the casing into two vertical fines so that a circulation of air to and fromV the burners vvill be maintained. The partition 14; eirtends to a point near the top of the main body of the shell or casing 2 and rests at its lower eornersuponthe bottom of the easing but is provided at its lovverend with an elongated notch or slot 15 to accommodate the supplypipe 11 and also to permit circulation solthat cold fresh air may pass to the burners. In the'present instance, l have shown the main body of theheater as covered a lid "1.6 which rests on and fits Hclosely 'within the upperl end of said body andis provided ivith a handle'17 whereby it maybe easily removed and replaced; The lid 'isprefer'ably of an arched form andwis provided in its endswith a plurality of openingsV 18 through `which air'islperinitted to enter and to escape. lt will be understood,

ofcoursathat the nozzles 9 and l() "are threade'diiinto the ends of the Water back soV ers; the heattheref'rom Will, rise through the chimneys or' tubes 6 andlivill strike against Vto n Viv ardly around Y 60 .the bottom of the 4Water back, beingwde- Vfleeted"by the saine and tl'ienpassing rearwardly' therefrom toward the partition 14. The partition will, lof course, prevent the warm currents reaching and playing upon the reservoir and they will naturally ascend through. the relatively narrow space or fine between the partition and the `Wall of the casing yadjacent the offset 3, eventually escaping through some of the openings 18 in lthe cover.` This flow of hot air frornn the heater will create. a draft around the reservoir and between the ivall of the heater, and

thepartition 14 so that fresh cool air Vivill be diarvninto theheater through the openingsl 18 and play upon' the reservoir tonid .in guarding. against explosion, The descending cool` air currentswill obviously pass through the slot or notch 15 at the lower edge of the partition. and-Will thence pass to andnption will be Vmaintained 'anda circulation within the heater created. lt will be readily nortedthat by providingopeni'ngs in theY end Wialls of the cover, check the entrance ofV Jair sjo'tliat the draft through the lieater'willv not be excessive and, therefore, Will nottend the burnersfso that combus-V to extinguish the flanie but, by providing the partition 14, l create a positive circulation of aiiithrough the casing so that the'foul air and products of combustion may escape but fresh air Will be constantly admitted to support combustion. Moreover, by retarding the draft or circulation, the air within the heater adjacent the Water back Will'be thoronghlyheated andwillact upon the side Walls of the offset portion of the heater as well as upon the end Walls thereof to heat the sanie and thus act directlylupon the body offivater in the tank.

The heater need .not'be vpermanently'secured Within tlietank but'ma'y rest' directly upon the bottom thereof and maybeplaeedat any point of the tank. It may also bereinov'ed and' replaced atyvill'sotliat the cleaning` of theheater may beverye'asily and thoroughly 'accomplished Then the burners needattention, the partition and'resew voir are removed, after `Which the burners may be readily drawn back from the offset 3 and lifted outlthrough-the ltop ofthemain body of the casing. vrlhe rdevice is very simple in the construction and arrangement of its parts, may beproduced and installed at a loW cost, and in usewill be found highly efii'cient.

Having thus Vdescribed the invention, What is claimed as nevvis:

l. A heater for'stock-vvatering tanks coniprising a sliell'l'iaving an offset portion 'at one side` a burner Within the offsetportion of the shell, and a waterbaek supported Within the offset portionV of tlie'sliell directly over the burner and having inlet and outlet nozzles at its oppositefends in communica tion with the Water in the tank. Y

2. A heater forstock-Watering tanks comprising aVv casing adapted toz be supported Within a tankj a burner Within the' casing', a

ivater backsupprted Within the easingand exposedto the direct action of theburnem an inlet nozzle extending from one end' of the Water Vback near the bottom thereof through the'adjaeent wall of the casingand turned downwardly at the outer sideofdthe casing,A Vand an outletnozzle leading from the Aopposite end of the Water back near the `top' thereof throughthe adjacent Wallof the casing and turned upwardly at the outer side of the casing. j

A heater for stock-Wateringtanks coinprising a casing adapted to be supported Within a tank and havinga main 'portionextending above the water level in .the tank andL an offset portionl eiitending laterally Vfrom theloiver end of the mainfpoition7 a fuel reservoir' Within said casing, a burner from and .in eominunieation Withi'the reser .Within the offsetip'ortion f the casing spaced voir, a Water container disposed above the j Y burner andin communication with the Water).

in the tank, and a partition'arranged Within iso and extending to the top of the main portion of the casing between the burner and the fuel reservoir.

4. A heater for stock-Watering tanks coniprising a easing adapted to be supported Within a tank and including a vertically tending main portion and a lateral offset extending from the lower part of the main portion, a vertically disposed partition within the main portion of the casing resting on the bottom thereof and extending` to the top of the same, said partition-having an opening through its lower portion, a fuel reservoir supported within the tank at one side of said partition, a burner Within the offset of the casing at the opposite side of the partiton and in communication with the reservoir, a Water container supported directly over the burner, and a cover removably fitted upon the casing directly over the partition and provided with a plurality of openings therethrough.

In testimony whereof I affix my signature.

HIRAM A. BARRETT, [11. sf] 

